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Anatomy of soft body of Pugilina cochlidium (Linnaeus, 1758) and P. erecta (Vermeij & Raben, 2009) (Neogastropoda: Melongenidae) from Thondi Coast-Palk Bay in Tamil Nadu, India / Anatomia do corpo mole de Pugilina cochlidium (Linnaeus, 1758) e P. erecta (Vermeij & Raben, 2009) (Neogastropoda: Melongenidae) de Thondi Coast-Palk Bay em Tamil Nadu, na Índia
Ríos-Escalante, P. De los; Ragunathan, C; Kanagu, L; Stella, C.
  • Ríos-Escalante, P. De los; Universidad Católica de Temuco. Facultad de Recursos Naturales. Departamento de Ciencias Biológicas y Químicas. Temuco. CL
  • Ragunathan, C; University, Thondi Campus. Department of Oceanography and Coastal Area Studies, Alagappa. Tamil Nadu. IN
  • Kanagu, L; University, Thondi Campus. Department of Oceanography and Coastal Area Studies, Alagappa. Tamil Nadu. IN
  • Stella, C; University, Thondi Campus. Department of Oceanography and Coastal Area Studies, Alagappa. Tamil Nadu. IN
Braz. j. biol ; 81(2): 335-342, 2021. ilus
Article in English | LILACS, VETINDEX | ID: biblio-1153364
ABSTRACT
The species of Pugilina cochlidium (Linnaeus, 1758) and P. erecta (Vermeij & Raben, 2009) has been studied in the present study. The female can be differentiated from the male by the absence of the cephalic penis and a complicated genital aparatus visible through the mantle skirt in both the sexes. In other aspects of the external features of female are quite to males. In both species the digestive system was similar with few differences in structure between each other. It consists of buccal mass, proboscis, salivary glands, accessory salivary glands, oesophagus, stomach, intestine, rectum and anus. The nervous system in both P. cochlidium and P. erecta is constituted by six ganglia which forms the circumoesophgeal ganglionic ring. Among the neogastropods there is a similarity in the organization of the reproductive systems. The female reproductive system is more complicated than that of male. The sexes are separated in these two species. The gross morphology of the reproductive system of P. cochlidium and P. erecta was almost similar. The present study aims to describe the digestive system, nervous system and reproductive system of two gastropods species P. cochlidium and P. erecta.
RESUMO
As espécies de Pugilina cochlidium (Linnaeus, 1758) e P. erecta (Vermeij & Raben, 2009) foram tomadas no presente estudo. A fêmea pode ser diferenciada do macho pela ausência do pênis cefálico e um complicado complexo genital visível através da saia do manto em ambos os sexos. Em outros aspectos das características externas da fêmea são bastante semelhantes aos dos machos. Em ambas as espécies, o sistema digestivo era semelhante, com poucas diferenças de estrutura entre si. Consiste em massa bucal, probóscide, glândulas salivares, glândulas salivares acessórias, esôfago, estômago, intestino, reto e ânus. O sistema nervoso em P. cochlidium e P. erecta é constituído por seis gânglios que formam um anel ganglionar circunoesofágico. Entre os neogastrópodes, há uma semelhança na organização dos sistemas reprodutivos. O sistema reprodutivo feminino é mais complicado que o masculino. Os sexos são separados nessas duas espécies. A morfologia macroscópica do sistema reprodutivo de P. cochlidium e P. erecta foi quase similar. O presente estudo tem como objetivo descrever o sistema digestivo, sistema nervoso e sistema reprodutivo de duas espécies, P. cochlidium e P. erecta.
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Full text: Available Index: LILACS (Americas) Main subject: Digestive System / Gastropoda / Genitalia / Nervous System Limits: Animals Country/Region as subject: Asia Language: English Journal: Braz. j. biol Year: 2021 Type: Article Institution/Affiliation country: Universidad Católica de Temuco/CL / University, Thondi Campus/IN

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Full text: Available Index: LILACS (Americas) Main subject: Digestive System / Gastropoda / Genitalia / Nervous System Limits: Animals Country/Region as subject: Asia Language: English Journal: Braz. j. biol Year: 2021 Type: Article Institution/Affiliation country: Universidad Católica de Temuco/CL / University, Thondi Campus/IN